Frost and Ice Crust: A February Stress Test for Weak Winter Crops

In the second ten-day period of February, unstable weather conditions were observed in Ukraine, with significant fluctuations in average daily temperatures and a sharp cold snap in the middle of the period, ProAgro Group reports.

According to the Ukrainian Hydrometeorological Center, winter crops across the country remained in a state of deep winter dormancy throughout the period.

The lowest soil temperatures (minus 12–13°C) at the depth of the tillering node (3 cm) of winter crops and perennial grasses were recorded at several meteorological stations in Kirovohrad and Dnipropetrovsk regions. Such temperature drops posed a threat to winter barley, winter rapeseed and weakly developed winter wheat, although the duration of exposure was relatively short.

For the third consecutive ten-day period, a ground-adhering ice crust formed or persisted on many fields in Kirovohrad, Poltava and Kharkiv regions, as well as on some fields in Dnipropetrovsk region. In Kyiv, Chernihiv, Cherkasy and Volyn regions, ice crust was observed locally during one ten-day period. Its thickness ranged from 2 to 27 mm, while in some areas of Kharkiv region it reached 42–54 mm. The extent of coverage varied from 10% to 100% of field areas.

As reported earlier, hydrometeorological conditions during the autumn–winter period of 2025/26 in most river basins of Ukraine were generally favorable for the formation of spring floods, unlike in several previous seasons.

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